Telephone-support.



No. 821,247. PATENTED MAY 22, 1906. W. B. LEHMKUHL.

TELEPHONE SUPPORT.

EPPLIOATION FILED wuss, 1905.

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- wgw entrain stares WILLIAM B.. LEHMKUHL, OF UAhilBBlDGE,MASAGHUS1QTTS,

(s om ASSIGNOR OF ONE-HALF TO SAMUEL B SHAPLEIGl-Pi, 6F BOSTQN, MASSACHUSETTS.

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Specification of Letters Patent.

Patent-ed may 22, 19415.

Application filed June 9,1905. Serial No. 264,4 t8. Q

' This invention relates to a supporting apparatus especiallydesignedand adapted to be employed as a support for telephones, and moreparticularly telephones of that class known as desk-telephones. For th spurpose the telephone is connected to a pivoted member which is capableof being positively moved. by the operator and is restrained frommovement by the weight of the telephone when released by the-operator.

Other features of this invention will be pointed out in the claims atthe end of this specfication.

Figure 1 is a side elevation'of a desk provided with a telephone-supportembodying this invention Fig. 2, a,deta:l, in side elevation with partsbroken away and on an enlarged scale,'of a portion of the support shownin Fig. 1; Fig. 3, a sect onal detail on the line .3 3, Fig. 2, to bereferred to; and Fig. 4 a detail of the means prcferredby me forattaching the telephone to the support.

The support herein shown as embodying this invention consfsts,essentially, of two mem bers a b, pivotally connected together. Themember a is made in the form of a substantially long arm, preferablyprovided with a curved or bent portion 0 at its outer end and providedat its opposite end with two substantially circular forks d, (see Fig.3,) having circular openings 2 in line with each other for a purpose aswill be described.

The member I) is provided with two substantially circular forks f, whichare designed to be embraced by or have fitted over them the forks d ofthe member a. The forks f sup port a center pin or shaft 9, whfchisextended through them and upon which is loosely mounted a ratchet-wheelh, with whch cooperates a pawl i, (see Fig. 2,) carried by the member aand in the present instance represented as pivoted at in a groove orslot k in the member a in line with the ratchet-wheel n. The pawl i isnormally held in engageby the pawl i.

ment with the ratchet-wheel h by a spring m.

The pivot pin or shaft g has mounted on it friction-disks n, which fitthe circular openings e in theforks d of the member (land serve asbearings for the forked member an to turn upon. The disks a are retainedin position on the pin g by the head 0 and nut p, and by turnin thesa dnut in one direction the dfsks n are rawn toward each other, so as toforce the forks f of the member 1) into more or less frictionalengagement with the ratchet-wheel h, thereby offering more or lessresistance to the rotation of said ratchet-wheel for a purpose as willbe described. I

The telephone set herein shown comprises the transmitter 10, its stand12, the receiver 13, and the hook 14, pivoted to the stand 12, and inaccordance with this invention this set is attached to the member a ofthe supporting.

apparatus. I In the present instance I have shown one means foraccomplishing this re-' sult, and for this purpose I employ two links 1718, pivoted to the opposite sides of the curved end of the member-a andprovided at their opposite ends with slots 19, (see dotted lines, Fig.4,) which engage the pivot 20 for the transmitter, the said links beingfirmly clamped on the pivot 20 by the thumb screw 21 which is employedto secure the transmitter in frictional engagement with the stand 12.

From the above description it will be seen that the member a, may beturned on its pivot in one direction as, for instance, from its elevatedposition (shown by full lines in Fig. 1) into its lowered position(shown by dotted lines)and that such movement of the mem hero iscommunicated to the ratchet-wheel h In order that the movable member amay be arrested in any osition into which it is desired that the teephone should be brought, a frictional resistance sufficient for thispurpose is created between the forks If and the ratchet-wheel h, andthis frictiona resistance may be obtained, as herein shown, by turningup the nut 7 so as to cause the forks f of the member to clamp theratchet-wheel with suilicient force to revent it being turned by the weiht of t e telehone, and especially when the latter is in its f oweredposition. (indicated by dotted lines.) When the operator has finishedusing the telephone, it may be turned up out of the way, and for thispurpose the member a is turned by the operator into its full-line position in Fig. i. it will be'observed that on thisbachward movement ofmember a the ratchet wheel is not rotated and the pawl merely clicks bythe teeth thereon until theoperator releases his hold upon the her a,whereupon the said pawl engages a tooth of the ratchet-wheel and locksthe memher a to said Wheel, which is frictionally held IO; from turning,as above described, until such frictional resistance is positivelyovercome by the operator. 7 The member Z of the sapporting apparatus maybe rigidly secured to the desk or other structure; but it is notdesiredtolimit the invention in this respect, as

it may be desirable to have ti e member b capable ofturm'ng on a pivot,and for this pnr- 2 5 support for the telephone maybe tnr' d in acomplete circle, sothat the teiephoi accessible for'nse from any pointin the circle having the pi t as a center. rangement is especiallyserviceable when two desks are located back to back, asv thetelephone-support can be quickly and easily turned so as to be used fromeither desk.

I may prefer to provide the member a with a curved or bent oiiter end toenable the tele- 3 5 phone set to hang in a vertical plane When not inuse, as represented Fig. 1; but 1 do not desire to limit my invention inthis respect. I la 4o l. in a support of the character described, incombination, two members ivotally connected, a ratchet-Wheel carried yone of said members, a pawl carried by the other of said members andcooperating With saidratchet- 5 Wheel, and means to create resistance tothe movement of said ratchet-wheel, substantially as described.

' 2.- in a support of the character described,

in combinat1on,a member pivoted to'turn in one direction, a secondmember pivoted to the first-mentioned member to turn in a directionsubstantially at right angles to the direction Such an ar end with forkshaving opcnin s, a second member provided With forks W ich are em bracedby the forks of the first-mentioned member, a ivot pin or shaftsupported by the "forks or the second member, a ratchet- .Wheel mountedon said shaft or pivot between the forks of the second member, a pawlcarried by the first member and engaging said 7o I ratchet-Wheel, disksmounted on said ivot and extended into the openin s in the orks of thefirst member to engage t e forks of the second member, and means to movesaid disks "toward each other, for the purpose specified.

l. In a support of the character described, in combination,a-member'pivoted to turn in one direction, means for supportinga tele'phone connected 'to said member, a second member pivoted to turn in adirection at an angle to the first-mentioned direction, a rotatabledevice carried by said second member, means carried by said first memberto engage said rotatable device and effect movement thereof when thefirst-mentionedmember is moved in one direction, and to permit movementof said first-mentioned member in the opposite direction independent ofsaid rota-' table device, substantially as described.

5. In a support of the character specified, in combination, a pivotedarm, means for supporting a telephone connected to said. arm, arotatable device, means carried by said arm and cooperating with saidrotatable 5 device to effect rotation thereof When said arm is moved inone direction, and means to retain said rotatable device stationaryWhile under the inliuence oftheweight of the telephone, substantially asdescribed.

' 6. in a support of the character specified, in combination, a pivotedarma rotatable device, means carried by said arm and coopcrating withsaid rotatable device to elfect' rotation thereof When'said arm ismovedin one direction, and means to retain said rota table devicestationary'when the pivoted arm. is moved in the opposite direction,substantially as described. v

In testimony WhereofThave signed my '1 10 name to this specification inthe presence of two subscribin Witnesses. I a

W LLIAM B. LEHMKUHL. Witnesses:

JAs. H. CnURonrLL, 'lt. MURPHY.

